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komplex-hub/build/qml/QtQuick/Studio/Utils/JsonListModel.qml
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2026-06-02 15:11:36 -04:00

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QML

/****************************************************************************
**
** Copyright (C) 2023 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Quick Dialogs module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
import QtQml
import QtQml.Models as M
import QtQuick.Studio.Utils as U
M.ListModel {
id: listModel
property url source
property var jsonObject
dynamicRoles: true
property U.FileReader fileReader: U.FileReader {
id: fileReader
filePath: listModel.source
onContentChanged: listModel.updateJSON()
}
// qmllint disable compiler
onJsonObjectChanged: {
listModel.clear()
var objectArray = listModel.jsonObject
for (var key in objectArray) {
var jo = objectArray[key]
listModel.append(jo)
}
}
function updateJSON() {
var objectArray = JSON.parse(fileReader.content)
listModel.jsonObject = fromLocalJson(objectArray)
invalidateChildModels()
}
function isObject(obj) {
return obj && obj.constructor === Object
}
function fromLocalJson(localJson) {
if (!isObject(localJson))
return {}
var parsedModel = {}
for (let collectionName in localJson) {
let collection = localJson[collectionName]
if (isObject(collection)) {
if (Array.isArray(collection.columns) && Array.isArray(collection.data)) {
let propertyNames = []
let extractedCollection = []
for (let columnId in collection.columns) {
let column = collection.columns[columnId]
propertyNames.push(isObject(column) ? column.name : null)
}
for (let rowId in collection.data) {
let extractedElement = {}
let row = collection.data[rowId]
if (Array.isArray(row)) {
let maxIdx = Math.min(row.length, propertyNames.length)
for (let idx = 0; idx < maxIdx; ++idx) {
let propertyName = propertyNames[idx]
if (propertyName !== "") {
let value = row[idx]
if (value !== undefined && value !== null)
extractedElement[propertyName] = value
}
}
}
extractedCollection.push(extractedElement)
}
parsedModel[collectionName] = extractedCollection
}
}
}
return parsedModel
}
function invalidateChildModels() {
for (let property in listModel) {
let propertyValue = listModel[property]
let propertyValueIsObject = propertyValue && typeof(propertyValue) === "object"
if (propertyValueIsObject && propertyValue.jsonObject !== undefined)
propertyValue.jsonObject = listModel.jsonObject
}
}
Component.onCompleted: {
updateJSON()
}
// qmllint enable compiler
}